OfftoNeverNeverland wrote: ↑Mon Mar 18, 2019 12:35 pm
Palerider, I am going to have to start charging you tuition.
Just as soon as you have anything worth learning, I'll be happy to teach you about paragraphs for a modest fee.
OfftoNeverNeverland wrote: ↑Mon Mar 18, 2019 12:35 pm
Any time any form of cellular modem (CPAP type or let's say even a cellular flood water meter sitting on a sluice gate on a lake far far way) is used the way it was engineered, the computer logs in that signal (a form of serial number software code) and that activity is called by IT guys, as "the hand-off."
We don't call it that, because that's not what it is called. The 'handoff' is when your connection moves to another tower. What the hell is a 'serial number software code'? are you trying to refer to an IMEI number?
OfftoNeverNeverland wrote: ↑Mon Mar 18, 2019 12:35 pm
That hand-off data is stored and that cell tower unit (could be a repeater on top of a local water tower) is a known landmark with known Lat./Long. coordinates.
Most cell towers don't move around? you don't say... some do though.
OfftoNeverNeverland wrote: ↑Mon Mar 18, 2019 12:35 pm
Now with time/distance calculations done by the software itself, the location of that cpap signal is easily triangulated (calculated) and is logged and stored.
First, doing a time of flight calculation requires *precise* timekeeping. More than your cell phone does.
Secondly, it is impossible to "
triangulate" something with only one distance measurement. The best that can do is locate something within a vague circle. You need *three* fixes (four, if you're dealing with a 3d system) to get a location.
Apparently so you can babble on.
OfftoNeverNeverland wrote: ↑Mon Mar 18, 2019 12:35 pm
Because the computer needs to estimate the next hand-off to the next nearest tower/repeater so your calls are not interrupted as you drive around chatting with your friends.
I drive around chatting on my *non voice* cpap all the time! However, you're completely wrong about all of this, Cell phone handoff between towers is based on *signal strength* not *position*, since they don't know where you are, but the handset DOES know the signal strength of the towers it can hear.
Some *actual* information on the subject:
https://www.electronics-notes.com/artic ... andoff.php
You might notice there's not *one word* in there about the tower "triangulating" squat.
It seems that the entire subject is unknown by you.
Nothing is stored 'forever".
OfftoNeverNeverland wrote: ↑Mon Mar 18, 2019 12:35 pm
And yes my friend, the location feature on your smart phone works the same way if it is a cellular phone as it is a time/distance calculation done by the timing of RF (radio) signals that emanate from your cell phone (like a walkie talkie) to a tower/repeater and back again that are recognized and logged in--that is how a cell phone works.
No, it doesn't.
The only time/distance location feature in a cell phone is the GPS, which *does* work on time of flight calculations, using the atomic clocks in all the satellite vehicles, and then GPS receivers calculate the distance to each rapidly moving SV and thus *triangulate* (actually, quadangulate, since it takes signal from at least four SVs to locate you in 3d space.
OfftoNeverNeverland wrote: ↑Mon Mar 18, 2019 12:35 pm
Check your location history of your smart phone on your google account if you have google maps installed and location-on and you can see where your phone has been all over the USA throughout its history provided your phone was on and pinging towers (about every 15 minutes usually) as you moved around.
Location history is based on GPS with a map of wifi hotspots that google and others have collected, not cell signals.
OfftoNeverNeverland wrote: ↑Mon Mar 18, 2019 12:35 pm
Satellite phones work differently as they commonly only transmit up to geosynchronous satellites (see Iridium) and your location is triangulated that way rather than triangulated by ground repeaters like your smart phone.
Wow, you don't actually know *anything* about this, do you?
Iridium SVs are approximately 483 miles above the surface of the earth, traveling approximately 16,689 mph resulting in a complete orbit of the earth approximately every 100 minutes.
Geo
stationary satellites orbit over the equator, at approximately 22,236 miles above mean sea level, and complete one orbit per day.
OfftoNeverNeverland wrote: ↑Mon Mar 18, 2019 12:35 pm
Your common smart phone "GPS" location is not working if your phone is out of cell tower/repeater range.
Again, wrong. the GPS in your phone does not require a cellular signal, it receives it's data from the GPS SVs (which fly at about 12,500 miles altitude, and thus orbit the earth twice a day). Cell service is *NOT REQUIRED* for GPS, just like a standalone GPS doesn't have a cell phone built into it.
OfftoNeverNeverland wrote: ↑Mon Mar 18, 2019 12:35 pm
The point you are missing about CPAPs is that unlike other devices, these
new-fangled CPAPS with cellular modems embedded in them are a fairly new feature and work automatically behind the scenes without user input (the CPAP calls out every day before local noon time in most models).
I'm not missing ANYTHING about new cpaps. You however, are so far out in left field that I'm not even sure you can be reached by long distance.
OfftoNeverNeverland wrote: ↑Mon Mar 18, 2019 12:35 pm
You do not even know it DID that as a typical user
I knew it the day the machines hit the market. The previous machines had a clip on cell modem, instead of having them built in like the newer Resmeds do, but that's the *ONLY* difference... this tech has been around for 9 years now.
You're assuming facts not in evidence.
OfftoNeverNeverland wrote: ↑Mon Mar 18, 2019 12:35 pm
is that few users appreciate that their CPAP (depending on model) has an automatic cell phone feature
These must be the people that didn't read what they signed at the DME, since one has to GIVE PERMISSION for data to be collected remotely.
OfftoNeverNeverland wrote: ↑Mon Mar 18, 2019 12:35 pm
embedded inside that transmits and receives data without them knowing about it!
See above.
OfftoNeverNeverland wrote: ↑Mon Mar 18, 2019 12:35 pm
It doesn't stop after T-minus 90 days compliance. Any attorney or police agency can get your CPAP LOCATION
Assuming it even exists, .... given that the only thing that you've said that's actually verifiable was:
I find this hard to take very seriously.
OfftoNeverNeverland wrote: ↑Mon Mar 18, 2019 12:35 pm
data by subpoena if it were to become legally relevant (perhaps you are a Silver-Alert elderly person who failed to return home and may need medical attention (you know how adult children can worry); all it takes is for Grandpa to use his CPAP w/ modem the night after a one-armed bandit frolic at the Golden Nugget in Vegas and Grandpa is found the next day! So wake up (after a low or 0.0 AHI evening) and smell the coffee!
I believe, after all this, that I shall revise my original evaluation of your post from
Ridiculous!
to the much more appropriate
Ludicrous!